217365382141 has 8 divisors (see below), whose sum is σ = 222948724064. Its totient is φ = 211806055440.

The previous prime is 217365382139. The next prime is 217365382153. The reversal of 217365382141 is 141283563712.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 217365382141 - 2¹ = 217365382139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (217365382441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5985471 + ... + 6021676.

It is an arithmetic number, because the mean of its divisors is an integer number (27868590508).

Almost surely, 2^217365382141 is an apocalyptic number.

It is an amenable number.

217365382141 is a deficient number, since it is larger than the sum of its proper divisors (5583341923).

217365382141 is a wasteful number, since it uses less digits than its factorization.

217365382141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12007611.

The product of its digits is 241920, while the sum is 43.

The spelling of 217365382141 in words is "two hundred seventeen billion, three hundred sixty-five million, three hundred eighty-two thousand, one hundred forty-one".